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Please start your own thread. It is hard for us to keep your problem separated from a problem someone else has. If you need help starting a new thread, say something and one of us will help you.

Its the same

Someplace towads the begining of this thread, (or maybe another thread?) I posted that someone in the know tolld me there is no difference to speak of, between the A and B model GCU. So if it runs, go for it!

I talked with someone in CECOM. He told me there is another A5 that fits both the A&B models. So universal. NSN 2990-01-601-2476, Part # 88-22850 and part number ESD5560, (Governors America Corporation.) I looked in epay and found under the part #ESD5560 one listing. Be prepared for sticker shock.

My mistake. I thought the S14 was a plastic relay. And it part of the A5. I guess Kurt set you straight. Sorry. There are 2 part numbers for the A5. Part numbers 97-24134 and 8270-1096. Both show a NSN of 2910-01-571-1364. The part # 0270-1036 is not to be found in the Fed. Loc System. Did...

Getting close to 00:00. will sign off in a few.

Its in figure #7 of the -24P

Item 42 is the S14. Its on the back wall.

It can not be the K2. If the unit cranks with the S10, then the K2 and B1, (cranking motor are good. Look at the colored schematic. Find S1. Turn the S1 to start. You said you had 24 VDC when you tested this. So S1 should be good. If you have 24 VDC, then measure at CR4. Do you have voltage up...

Here are all the schematics.

My fault. its 00:30.

Here is a simply schematic. Are you familiar with schematics?

No signal from the MPU, no start. The MPU is not a crank sensor. It monitors the speed of the engine.

If your MPU is chewed up, you need a new one. It tells the governor what to do. No signal, no start. Get a new one and then read the procedure in properly install it, of you will wind up buying another. Then try starting again.

Its 00:00 here, so I only have a little more time.

Slow down partner. You need to hit the books. The -10 manual tells you how to properly start the set. The fuse has nothing to do with starting. Its to protect the main generator from being damaged when the volt regulator, (the box to the right of the fuse) goes bad. Tell me whats not working...

When you see the " notify next higher level of maintenance" comment, you need to go deeper into the book. There is another troubleshooting section. Yes the MPU will prevent it from starting. Have you ever seen it run right? Or is the set new to you?